Rack



FIG. 1 is a right front perspective of a rack, showing my new design;

FIG. 2 is a front elevational view, thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevationalview being a mirror image;

FIG. 4 is a rear elevational view, thereof;

FIG. 5 is a top plan view, thereof; and,

FIG. 6 is a bottom plan view, thereof.

CLAIM The ornamental design for a rack, as shown and described.